.jpg)
Recent from talks
USS Nautilus (SS-168)
Knowledge base stats:
Talk channels stats:
Members stats:
USS Nautilus (SS-168)
USS Nautilus (SF-9/SS-168), a Narwhal-class submarine, a very large cruiser submarine and one of the "V-boats", was the third ship of the United States Navy to bear the name.
Nautilus was originally named and designated V-6 (SF-9), but was redesignated and given hull classification symbol SC-2 on 11 February 1925. Her keel was laid on 10 May 1927 by the Mare Island Naval Shipyard of Vallejo, California. She was launched on 15 March 1930 sponsored by Miss Joan Keesling, and commissioned on 1 July 1930. It was the first of many submarines built at Mare Island CA.
The configuration of V-4, V-5, and V-6 resulted from an evolving strategic concept that increasingly emphasized the possibility of a naval war with Japan in the far western Pacific. This factor, and the implications of the 1922 Washington Naval Treaty, suggested the need for long-range submarine "cruisers", or "strategic scouts", as well as long-range minelayers, for which long endurance, not high speed, was most important. The design was possibly influenced by the German "U-cruisers" of the Type U-139 and Type U-151 U-boat classes, although V-4, V-5, and V-6 were all larger than these. A raised gun platform was provided around the conning tower, and deck stowage for spare torpedoes was included under the platform and in the superstructure. V-6 and her near-sisters V-4 (Argonaut) and V-5 (Narwhal) were initially designed with larger and more powerful MAN-designed diesel engines than the Busch-Sulzer engines that propelled earlier V-boats, which were failures. Unfortunately, the specially built engines failed to produce their design power, and some developed dangerous crankcase explosions. The engineering plant was replaced in 1941-42.
The as-built engine specifications were two BuEng-built, MAN-designed direct-drive 10-cylinder 4-cycle main diesel engines, 2,350 hp (1,750 kW) each, with two BuEng MAN 4-cycle 6-cylinder auxiliary diesel engines, 450 hp (340 kW) each, driving 300 kW (400 hp) electrical generators. The auxiliary engines were for charging batteries or for increased surface speed via a diesel-electric system providing power to the main electric motors.
Similar to her sister built at Portsmouth, V-6 was built to a partial welded/partial riveted construction method. Welding was used to join the vertical keel plates, and also in other non-critical areas like the superstructure, piping brackets, and support framing. The inner and outer hulls were still entirely riveted.
V-6 operated out of New London, conducting special submergence tests, until March 1931. She was renamed Nautilus on 19 February and given hull number SS-168 on 1 July. She proceeded to Pearl Harbor where she became flagship of Submarine Division 12 (SubDiv 12). Reassigned to SubDiv 13 at San Diego, California, 1935–1938, then re-homeported at Pearl Harbor, she maintained a regular schedule of training activities and fleet exercises and problems throughout the decade. In July 1941, she entered the Mare Island Naval Shipyard for modernization – radio equipment, external torpedo tubes (two bow and two stern-firing in the gun deck), re-engining (with four Winton diesels), and air conditioning.
She departed San Francisco, California, on 21 April 1942, reaching Pearl Harbor on 28 April. On 24 May, Nautilus (commanded by Lieutenant Commander William H. Brockman Jr.) got underway for her first war patrol, to Midway Island to help repel the expected attack by the Japanese fleet.
At 07:55, 4 June, while approaching the northern boundary of her patrol area near Midway Island, she sighted masts on the horizon. Japanese planes sighted the submarine at the same time and began strafing. After diving to 100 feet (30 m), she continued observation. At 08:00, a formation of four enemy ships was sighted: the battleship Kirishima, the cruiser Nagara, and two destroyers (misidentified, as they often were early in the war, as cruisers) in company. Within minutes the submarine was again sighted from the air and was bombed. Two of the "cruisers" closed for a kill and nine depth charges were dropped at a distance of about 1,000 yards (910 m).
Hub AI
USS Nautilus (SS-168) AI simulator
(@USS Nautilus (SS-168)_simulator)
USS Nautilus (SS-168)
USS Nautilus (SF-9/SS-168), a Narwhal-class submarine, a very large cruiser submarine and one of the "V-boats", was the third ship of the United States Navy to bear the name.
Nautilus was originally named and designated V-6 (SF-9), but was redesignated and given hull classification symbol SC-2 on 11 February 1925. Her keel was laid on 10 May 1927 by the Mare Island Naval Shipyard of Vallejo, California. She was launched on 15 March 1930 sponsored by Miss Joan Keesling, and commissioned on 1 July 1930. It was the first of many submarines built at Mare Island CA.
The configuration of V-4, V-5, and V-6 resulted from an evolving strategic concept that increasingly emphasized the possibility of a naval war with Japan in the far western Pacific. This factor, and the implications of the 1922 Washington Naval Treaty, suggested the need for long-range submarine "cruisers", or "strategic scouts", as well as long-range minelayers, for which long endurance, not high speed, was most important. The design was possibly influenced by the German "U-cruisers" of the Type U-139 and Type U-151 U-boat classes, although V-4, V-5, and V-6 were all larger than these. A raised gun platform was provided around the conning tower, and deck stowage for spare torpedoes was included under the platform and in the superstructure. V-6 and her near-sisters V-4 (Argonaut) and V-5 (Narwhal) were initially designed with larger and more powerful MAN-designed diesel engines than the Busch-Sulzer engines that propelled earlier V-boats, which were failures. Unfortunately, the specially built engines failed to produce their design power, and some developed dangerous crankcase explosions. The engineering plant was replaced in 1941-42.
The as-built engine specifications were two BuEng-built, MAN-designed direct-drive 10-cylinder 4-cycle main diesel engines, 2,350 hp (1,750 kW) each, with two BuEng MAN 4-cycle 6-cylinder auxiliary diesel engines, 450 hp (340 kW) each, driving 300 kW (400 hp) electrical generators. The auxiliary engines were for charging batteries or for increased surface speed via a diesel-electric system providing power to the main electric motors.
Similar to her sister built at Portsmouth, V-6 was built to a partial welded/partial riveted construction method. Welding was used to join the vertical keel plates, and also in other non-critical areas like the superstructure, piping brackets, and support framing. The inner and outer hulls were still entirely riveted.
V-6 operated out of New London, conducting special submergence tests, until March 1931. She was renamed Nautilus on 19 February and given hull number SS-168 on 1 July. She proceeded to Pearl Harbor where she became flagship of Submarine Division 12 (SubDiv 12). Reassigned to SubDiv 13 at San Diego, California, 1935–1938, then re-homeported at Pearl Harbor, she maintained a regular schedule of training activities and fleet exercises and problems throughout the decade. In July 1941, she entered the Mare Island Naval Shipyard for modernization – radio equipment, external torpedo tubes (two bow and two stern-firing in the gun deck), re-engining (with four Winton diesels), and air conditioning.
She departed San Francisco, California, on 21 April 1942, reaching Pearl Harbor on 28 April. On 24 May, Nautilus (commanded by Lieutenant Commander William H. Brockman Jr.) got underway for her first war patrol, to Midway Island to help repel the expected attack by the Japanese fleet.
At 07:55, 4 June, while approaching the northern boundary of her patrol area near Midway Island, she sighted masts on the horizon. Japanese planes sighted the submarine at the same time and began strafing. After diving to 100 feet (30 m), she continued observation. At 08:00, a formation of four enemy ships was sighted: the battleship Kirishima, the cruiser Nagara, and two destroyers (misidentified, as they often were early in the war, as cruisers) in company. Within minutes the submarine was again sighted from the air and was bombed. Two of the "cruisers" closed for a kill and nine depth charges were dropped at a distance of about 1,000 yards (910 m).
Recent media